Kropsz-Wydra, Irena, Hanna Adamska, Tomasz Szuk, and Stanisław Minta. “Investment Outlays on Nature Protection in the Context of the Share of Areas of High Environmental Value in the Regions of Poland ”. Economics and Environment 87, no. 4 (February 7, 2024): 672, 1–18. Accessed April 2, 2025. https://ekonomiaisrodowisko.pl/journal/article/view/672.